Unless you have an external filter that re-routes emails to the
anti-spam machine/appliance and a rule to apply that external filter on
messages sent to your main domain that do not have the proper headers
for anti-spam.

I am not sure you have the best email design, maybe you would want to
think about that.

Cheers,
Wael

On Mon, 2008-01-14 at 08:53 -0600, Johnston, Wayne wrote:
> CGP 5.0.13 on AS/400 V5R3.
>
> The SMTP address for our Main domain is shared with some of our smaller
> subdomains. I'm wondering if there is a way to restrict the SMTP mail
> on that address to allow only our SPAM filter in for our main domain
> while not making the same requirement for the sub domains. Some of the
> subdomains have chosen not to come through the spam filter.
>
> What I'm finding is that spammers are sending to us directly and
> circumnavigating the Spam filter.
>
> Thank you
> Wayne Johnston
> Ripon Medical Center
>
>
>
>
> #############################################################
> This message is sent to you because you are subscribed to
> the mailing list <CGatePro@mail.stalker.com>.
> To unsubscribe, E-mail to: <CGatePro-off@mail.stalker.com>
> To switch to the DIGEST mode, E-mail to <CGatePro-digest@mail.stalker.com>
> To switch to the INDEX mode, E-mail to <CGatePro-index@mail.stalker.com>
> Send administrative queries to <CGatePro-request@mail.stalker.com>